Islamic Jihad in Gaza condemned the attack, saying that "this attack aims to foment sedition and sectarian strife in Egypt, and is the interest of the Zionist enemy."
An Al Qaeda allied organization took responsibility for the attack.

Buy EoZ's books!
PROTOCOLS: EXPOSING MODERN ANTISEMITISM
If you want real peace, don't insist on a divided Jerusalem, @USAmbIsrael
The Apartheid charge, the Abraham Accords and the "right side of history"
With Palestinians, there is no need to exaggerate: they really support murdering random Jews
Great news for Yom HaShoah! There are no antisemites!